Method for operating a load lifting device to move a load and maintain the stable load, and control system for a lifting apparatus of lifting load

摘要

Method for operating a load lifting device to move a load and maintain the stable load, and control system for a lifting apparatus of lifting the load.A method and apparatus for operating a load lifting device to move a load and maintain the stable load are exposed.In the conventional technique, a suspended load lifted or lowered has a tendency to move from its desired position, when the hydraulic fluid in the system of lifting cools, for example.A condition of lock slides.The present invention monitors a fluid pressure in the lifting system and compensates for the pressure of fluid to accommodate any pressure drop due to the cooling fluid.In this way, the load can be effectively maintained stable to a desired position, and the condition of lock slides can be avoided.